Philadelphia Center City, PA
Pennsylvania · Records since 1940–2026
☁️ 78°F
Feels like 86°
Currently in Philadelphia Center City
As of 8:00 PM EDT
Records for July 28
🔥 Record High
99°F
July 28, 1940
+10° from 89° normal❄ Record Low
63°F
July 28, 1962
-8° from 71° normal
🌞 Normal high: 89°F 🌑 Normal low: 71°F 1991–2020 normals
All-Time Records — Philadelphia Center City
107°F
Hottest Day Ever
Jul 3, 1966
-5°F
Coldest Day Ever
Jan 19, 1994
7.50"
Wettest Day Ever
Sep 28, 2004
24.0"
Most Snow in One Day
Jan 8, 1996
Top 10 Record Highs — July 28
| # | Temp | Date |
|---|---|---|
| 🏆 | 99°F | July 28, 1940 |
| 2 | 98°F | July 28, 1999 |
| 3 | 97°F | July 28, 2020 |
| 4 | 97°F | July 28, 1963 |
| 5 | 97°F | July 28, 1941 |
| 6 | 96°F | July 28, 2021 |
| 7 | 96°F | July 28, 1995 |
| 8 | 96°F | July 28, 1954 |
| 9 | 95°F | July 28, 2002 |
| 10 | 95°F | July 28, 1949 |
Top 5 Record Lows — July 28
| # | Temp | Date |
|---|---|---|
| 🥶 | 63°F | July 28, 1962 |
| 2 | 64°F | July 28, 1977 |
| 3 | 65°F | July 28, 2001 |
| 4 | 65°F | July 28, 1996 |
| 5 | 65°F | July 28, 1991 |
Heat Wave Summary — Philadelphia Center City
threshold: 94°F (90th percentile of historical Jun–Aug highs)4.1
Avg heat wave length
days (historical)
99°
Avg peak temp
during heat waves
16
Dangerous nights 2026
Overnights ≥ 70°F
1
Heat waves 2026
so far
2026 Daily High Temperature vs Normal
Year to date
Above normal
Below normal
76 of 172 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1940–202616
2026 so far
30
Avg/year 1970–2025
45
Avg/year (last 10 complete)
73
Most in a year (2005)
Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Philadelphia Center City
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 28, 2002 – Aug 5, 2002 | 9 | 102°F (Aug 2) | 98°F | 78°F |
| 2 | Aug 11, 2002 – Aug 19, 2002 | 9 | 102°F (Aug 13) | 98°F | 78°F |
| 3 | Aug 27, 1973 – Sep 3, 1973 | 8 | 102°F (Aug 28) | 98°F | 79°F |
| 4 | Aug 27, 1953 – Sep 3, 1953 | 8 | 100°F (Aug 30) | 98°F | 78°F |
| 5 | Jun 30, 2018 – Jul 6, 2018 | 7 | 101°F (Jul 3) | 98°F | 78°F |
| 6 | Jun 7, 1984 – Jun 13, 1984 | 7 | 99°F (Jun 9) | 98°F | 76°F |
| 7 | Jul 19, 2022 – Jul 25, 2022 | 7 | 99°F (Jul 24) | 97°F | 79°F |
| 8 | Jul 13, 1997 – Jul 18, 1997 | 6 | 100°F (Jul 15) | 98°F | 78°F |
| 9 | Jul 16, 2013 – Jul 21, 2013 | 6 | 99°F (Jul 19) | 97°F | 80°F |
| 10 | Aug 12, 2016 – Aug 17, 2016 | 6 | 99°F (Aug 13) | 97°F | 79°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
16
2026 so far
above-normal nights
42.0
Avg / summer
1970–2020
66
Most in a summer
2005
Above-Normal Summer Nights Per Year
Average June–August Low by Decade
Overnight lows · complete decades only
Precipitation
Actual vs. 1991–2020 full-month and full-season normals
13.85"
2026 YTD
Normal: 28.27"
-14.42"
0.00"
July so far
July normal: 4.75"
-4.75"
4.32"
Summer so far
Summer normal: 14.47"
-10.15"
6
2026 heavy rain days
Days with ≥ 1.0"
Monthly Precipitation — Last 24 Months
Blue = actual · dashed line = monthly normal
Annual Precipitation Per Year (1970–2026)
Blue = above average · tan = below average · gold = 2026 (partial)
Heavy Rain Days Per Year (≥ 1.0")
Compare year-to-year changes in days with heavy rainfall (≥ 1.0")